summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorGreg Ungerer <gerg@snapgear.com>2007-07-15 23:38:33 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:37 -0700
commit17d8725d36c1f3d6a21a2d3f96875bda8ddfa92c (patch)
tree1003d39916a4f7df4eb574b3bd0a579aeda96422 /arch
parent2f75d1098c51734ce47d0afd44ecdc2ae9713031 (diff)
downloadop-kernel-dev-17d8725d36c1f3d6a21a2d3f96875bda8ddfa92c.zip
op-kernel-dev-17d8725d36c1f3d6a21a2d3f96875bda8ddfa92c.tar.gz
m68knommu: remove old cache management cruft from mm code
Remove cache management cruft. This code is dead, all the cache manangement functions for the ColdFire exist in the header file include/asm-m68knommu/cacheflush.h. Signed-off-by: Greg Ungerer <gerg@uclinux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/m68knommu/mm/memory.c80
1 files changed, 2 insertions, 78 deletions
diff --git a/arch/m68knommu/mm/memory.c b/arch/m68knommu/mm/memory.c
index 411e452..1a66b71 100644
--- a/arch/m68knommu/mm/memory.c
+++ b/arch/m68knommu/mm/memory.c
@@ -17,90 +17,14 @@
#include <linux/types.h>
#include <linux/slab.h>
-#include <asm/setup.h>
#include <asm/segment.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
-#include <asm/traps.h>
-#include <asm/io.h>
/*
- * cache_clear() semantics: Clear any cache entries for the area in question,
- * without writing back dirty entries first. This is useful if the data will
- * be overwritten anyway, e.g. by DMA to memory. The range is defined by a
- * _physical_ address.
- */
-
-void cache_clear (unsigned long paddr, int len)
-{
-}
-
-
-/*
- * Define cache invalidate functions. The ColdFire 5407 is really
- * the only processor that needs to do some work here. Anything
- * that has separate data and instruction caches will be a problem.
- */
-#ifdef CONFIG_M5407
-
-static __inline__ void cache_invalidate_lines(unsigned long paddr, int len)
-{
- unsigned long sset, eset;
-
- sset = (paddr & 0x00000ff0);
- eset = ((paddr + len) & 0x0000ff0) + 0x10;
-
- __asm__ __volatile__ (
- "nop\n\t"
- "clrl %%d0\n\t"
- "1:\n\t"
- "movel %0,%%a0\n\t"
- "addl %%d0,%%a0\n\t"
- "2:\n\t"
- ".word 0xf4e8\n\t"
- "addl #0x10,%%a0\n\t"
- "cmpl %1,%%a0\n\t"
- "blt 2b\n\t"
- "addql #1,%%d0\n\t"
- "cmpil #4,%%d0\n\t"
- "bne 1b"
- : : "a" (sset), "a" (eset) : "d0", "a0" );
-}
-
-#else
-#define cache_invalidate_lines(a,b)
-#endif
-
-
-/*
- * cache_push() semantics: Write back any dirty cache data in the given area,
- * and invalidate the range in the instruction cache. It needs not (but may)
- * invalidate those entries also in the data cache. The range is defined by a
- * _physical_ address.
- */
-
-void cache_push (unsigned long paddr, int len)
-{
- cache_invalidate_lines(paddr, len);
-}
-
-
-/*
- * cache_push_v() semantics: Write back any dirty cache data in the given
- * area, and invalidate those entries at least in the instruction cache. This
- * is intended to be used after data has been written that can be executed as
- * code later. The range is defined by a _user_mode_ _virtual_ address (or,
- * more exactly, the space is defined by the %sfc/%dfc register.)
- */
-
-void cache_push_v (unsigned long vaddr, int len)
-{
- cache_invalidate_lines(vaddr, len);
-}
-
-/* Map some physical address range into the kernel address space. The
- * code is copied and adapted from map_chunk().
+ * Map some physical address range into the kernel address space.
+ * The code is copied and adapted from map_chunk().
*/
unsigned long kernel_map(unsigned long paddr, unsigned long size,
OpenPOWER on IntegriCloud